MTD2000 AT Command Guide R12
Confidential
DAVISCOMMS (S) PTE LTD
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This command is used to set the speaker volume and MIC gain for voice call.
Note:
1. The device will turn off the speaker when call is not established and after the call is
ended.
2. The device supports both internal and external MIC in which higher gain will be set
for external MIC.
3. The device supports both internal and external speaker in which higher volume will
be set for external speaker.
4. The device will assume external speaker is used when external MIC is detected. If
external MIC is inserted, the device will switch to external MIC automatically and up
the MIC gain and speaker volume accordingly.
Syntax
Command
Response
AT$CS=<Speaker>,<MIC>
Note: Write setting.
OK
AT$CS?
Note: Query setting.
OK
$CS: <Speaker>,<MIC>
Parameters
Speaker
Speaker volume (0 – Low, 1 – Mid, 2 – High), default is 1
MIC
MIC gain (0 – Low, 1 – Mid, 2 – High), default is 1
Example
Command
Response
AT$CS=2,2
Note: Set speaker and MIC to high level.
OK
AT$CS?
Note: Query speaker and MIC setting.
OK
$CS: 2,2
